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Estimating number of HBV carriers infected through needle/syringe sharing, and number of carriers infected from imported HBV carriers

Research Project

Project/Area Number 25460631
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Medical sociology
Research InstitutionTokai University

Principal Investigator

FURUYA Hiroyuki  東海大学, 医学部, 准教授 (10276793)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords肝炎ウイルス / 集団予防接種 / 輸入感染例 / 肝炎キャリア / 水平感染 / キャリア / 輸入例 / 数理モデル / 病態進行 / ウイルス性肝炎
Outline of Final Research Achievements

The Japanese Government settled a class litigation case with hepatitis B virus (HBV) carriers who claim to have been infected through needle/syringe sharing in mass vaccination with a compensation agreement. Thus, how many of the present HBV carriers were infected horizontally from mass vaccination was estimated. One of two reports showed the ratio horizontal to vertical infection decreased exponentially, the other showed the ratio decreased linearly from 1950 to 1960. In this study, the estimated prevalence of HBV carriers by horizontal infection decreased from 0.12% to 0.07%. As progressing globalization, acute hepatitis of HBV cases caused by sexual transmission were observed in urban areas. Significant positive correlation between number of imported people from endemic countries and the prevalence of acute hepatitis of HBV with Genotype A. Model also showed estimated that increase in imported cases may increase its prevalence.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (4 results)

All 2015 2014 2013 Other

All Journal Article (1 results) Presentation (3 results)

  • [Journal Article] Estimation of environmental control measures for tuberculosis transmission in care facilities for the elderly2013

    • Author(s)
      Hiroyuki Furuya
    • Journal Title

      Tokai J Exp Clin Med

      Volume: 38 Pages: 135-141

    • Related Report
      2013 Research-status Report
  • [Presentation] 神奈川県内の事業者を対象とした肝炎ウイルス検査と肝炎に関する啓発活動に関する調査2015

    • Author(s)
      古屋博行、立道昌幸、渡辺 哲
    • Organizer
      第61回神奈川県公衆衛生学会
    • Place of Presentation
      神奈川県総合医療会館(神奈川県横浜市)
    • Year and Date
      2015-10-23
    • Related Report
      2015 Annual Research Report
  • [Presentation] 肝疾患相談センターにおける就労相談に関する実態調査2014

    • Author(s)
      古屋博行、立道昌幸、渡辺 哲
    • Organizer
      第73回日本公衆衛生学会総会
    • Place of Presentation
      栃木県総合文化センター
    • Year and Date
      2014-11-06
    • Related Report
      2014 Research-status Report
  • [Presentation] 職域における肝炎対策の実態と慢性ウイルス性肝炎患者への配慮に関する調査研究

    • Author(s)
      古屋博行、遠藤 整、渡辺 哲
    • Organizer
      第72回日本公衆衛生学会
    • Place of Presentation
      三重
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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